I guess this might also be a reason to start with some encryption or use advanced tools like intel's Vpro or other onboard encryption.

H_TeXMeX_H

11-08-2012 03:05 AM

They are pretty good. I prefer 'wipe'.

With journaled filesystems I recommend cleaning all free space once in a while. So make a large file full of zeroes or random data so that it occupies all free space, and then delete it immediately. Something like:

Code:

dd if=/dev/zero bs=4M of=file; rm -f file

As for multiple passes, it is for the very paranoid. It has never been proven that you can recover any meaningful data even after a pass of zeroes.